Earthquake with magnitude of ML 1.3 on date 20-09-2020 and time 09:54:50 (Italy) in region 9 km NW Milo (CT)

A magnitude ML 1.3 earthquake occured in region: 9 km NW Milo (CT), on

  • 20-09-2020 07:54:50 (UTC)
  • 20-09-2020 09:54:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.77, 15.03 at 4 km depth.

The earthquake was located by: Sala Operativa INGV_OE (Catania).

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Milo CT 9 1087 1087
Sant'Alfio CT 10 1582 2669
Zafferana Etnea CT 10 9517 12186
Linguaglossa CT 13 5403 17589
Santa Venerina CT 13 8592 26181
Piedimonte Etneo CT 14 3963 30144
Giarre CT 14 27659 57803
Mascali CT 14 14282 72085
Randazzo CT 14 10900 82985
Moio Alcantara ME 15 717 83702
Castiglione di Sicilia CT 15 3215 86917
Riposto CT 16 14838 101755
Fiumefreddo di Sicilia CT 16 9623 111378
Maletto CT 16 3920 115298
Pedara CT 17 14102 129400
Malvagna ME 17 733 130133
Nicolosi CT 17 7463 137596
Trecastagni CT 17 10910 148506
Francavilla di Sicilia ME 17 3945 152451
Ragalna CT 17 3924 156375
Santa Domenica Vittoria ME 18 980 157355
Bronte CT 18 19172 176527
Calatabiano CT 18 5308 181835
Viagrande CT 18 8563 190398
Roccella Valdemone ME 19 666 191064
Motta Camastra ME 19 845 191909
Gaggi ME 19 3184 195093
Aci Sant'Antonio CT 20 17984 213077
Aci Bonaccorsi CT 20 3524 216601

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Acireale (52622 inhabitants)
30 Km N of Catania (314555 inhabitants)
66 Km SW of Reggio di Calabria (183035 inhabitants)
66 Km SW of Messina (238439 inhabitants)
82 Km N of Siracusa (122291 inhabitants)
91 Km E of Caltanissetta (63360 inhabitants)
98 Km N of Ragusa (73313 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev200
ML 1.3 2020-09-20
07:54:50
37.77 15.03 4 2020-09-20
08:02:24
Sala Operativa INGV_OE (Catania) 83051021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-20 07:54:50
Latitude 37.77
Longitude 15.03
Depth (km) 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 200 -> SURVEY-INGV-CT#SeismPicker_SO-OE
Event type earthquake
Origin ID 83051021

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 400
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 1
Number of defining phases 1
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree)
Epicentral distance of station farthest from the epicenter (degree)
Number of stations at which the event was observed 0
Number of stations from which data was used for origin computation 0
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 83051021
Agency INGV
Autore Sala Operativa INGV_OE (Catania)
Time of creation (UTC) 2020-09-20 08:02:24
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download